free variation
phonetic situation where multiple different pronunciations are possible in a given language without changing a word's meaning
en-GB/ˈfɹiː ˌvɛəɹɪˈeɪʃn/
en-US/ˈfɹi ˌvɛɹiˈeɪʃən/
phonetic situation where multiple different pronunciations are possible in a given language without changing a word's meaning